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Diffstat (limited to 'm4/reallocarray.m4')
| -rw-r--r-- | m4/reallocarray.m4 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/m4/reallocarray.m4 b/m4/reallocarray.m4 new file mode 100644 index 0000000..f39ab6e --- /dev/null +++ b/m4/reallocarray.m4 @@ -0,0 +1,23 @@ +# reallocarray.m4 serial 3 +dnl Copyright (C) 2017-2022 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_REALLOCARRAY], +[ + dnl Persuade glibc <stdlib.h> to declare reallocarray. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + AC_REQUIRE([gl_CHECK_MALLOC_PTRDIFF]) + AC_CHECK_FUNCS([reallocarray]) + if test "$ac_cv_func_reallocarray" = no; then + HAVE_REALLOCARRAY=0 + elif test "$gl_cv_malloc_ptrdiff" = no; then + REPLACE_REALLOCARRAY=1 + fi +]) + +# Prerequisites of lib/reallocarray.c. +AC_DEFUN([gl_PREREQ_REALLOCARRAY], [:]) |